Pre_GI Gene

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Host: NC_011833 NEIGHBOURS BLASTN Download Island sequence Download Island gene sequence(s)

NC_011833:31192 Buchnera aphidicola str. 5A (Acyrthosiphon pisum) chromosome,

Host Lineage: Buchnera aphidicola; Buchnera; Enterobacteriaceae; Enterobacteriales; Proteobacteria; Bacteria

General Information: This strain is found in the pea aphid, Acyrthosiphon pisum. Buchnera of A. pisum are the prime model of an obligate symbiosis. Aphid endosymbiont. Almost all aphids contain maternally transmitted bacteriocyte cells, which themselves contain bacteria called Buchnera. The aphids live on a restricted diet (plant sap), rich in carbohydrates, but poor in nitrogenous or other essential compounds. It is believed that the Buchnera provide the essential nutrients the host lacks. Besides a nutritional co-dependence, due to a co-existence of millions of years, Buchnera have lost the ability to produce cell surface components such as lipopolysaccharides. This makes for an obligate endosymbiont relationship between host and Buchnera. Buchnera are prokaryotic cells which belong to the gamma-Proteobacteria, closely related to the Enterobacteriaceae family. Phylogenetic studies using 16S rRNA indicate that the symbiotic relationship was established around 200-250 million years ago. Since Buchnera are closely related to Escherichia coli and Haemophilus influenzae, comparative genomic studies can shed light on the evolutionary mechanisms of intracellular endosymbiosis as well as the different underlying molecular basis between organisms with parasitic behavior and symbionts.

This island contains ribosomal proteins or RNA related elements and may indicate a False Positive Prediction!

StartEndLengthCDS descriptionQuickGO ontologyBLASTP
311923346822775- methyltetrahydropteroyltriglutamatehomocysteine S-methyltransferaseQuickGO ontologyBLASTP
33591351681578bifunctional phosphoribosylaminoimidazolecarboxamide formyltransferaseIMP cyclohydrolaseQuickGO ontologyBLASTP
3530935587279DNA-binding protein hu-alphaQuickGO ontologyBLASTP
36321405444224DNA-directed RNA polymerase subunit betaQuickGO ontologyBLASTP
40622446504029DNA-directed RNA polymerase subunit betaQuickGO ontologyBLASTP
448704523836950S ribosomal protein L7L12QuickGO ontologyBLASTP
453054580249850S ribosomal protein L10QuickGO ontologyBLASTP
460684676369650S ribosomal protein L1QuickGO ontologyBLASTP
467664719442950S ribosomal protein L11QuickGO ontologyBLASTP
4724247787546transcription antitermination protein NusGQuickGO ontologyBLASTP
4779048173384preprotein translocase subunit SecEQuickGO ontologyBLASTP
48978500481071UDP-N-acetylenolpyruvoylglucosamine reductaseQuickGO ontologyBLASTP